1156157 has 2 divisors, whose sum is σ = 1156158. Its totient is φ = 1156156.

The previous prime is 1156151. The next prime is 1156171. The reversal of 1156157 is 7516511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 657721 + 498436 = 811^2 + 706^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156157 - 2⁸ = 1155901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1156151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578078 + 578079.

It is an arithmetic number, because the mean of its divisors is an integer number (578079).

2^1156157 is an apocalyptic number.

It is an amenable number.

1156157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156157 is an equidigital number, since it uses as much as digits as its factorization.

1156157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1050, while the sum is 26.

The square root of 1156157 is about 1075.2474133891. The cubic root of 1156157 is about 104.9555972497.

The spelling of 1156157 in words is "one million, one hundred fifty-six thousand, one hundred fifty-seven".